(USA) Staff, Data Scientist

Walmart • Sunnyvale, CA

5d • Onsite

About The Position

As a Staff Data Scientist at Walmart, you will leverage advanced analytical techniques and machine learning to transform complex data into actionable business insights. This role requires expertise in data strategy, model development, and validation to support decision-making across multiple business domains. You will collaborate with cross-functional teams to identify data sources, ensure data quality, and deploy scalable models that drive measurable impact. Your ability to communicate findings effectively and mentor team members will be essential in advancing Walmart’s data-driven initiatives and delivering innovative solutions aligned with strategic objectives. Immigration Sponsorship support will NOT be available for this position. The Applied AI Search & Personalization team develops scalable AI systems that transform how millions of customers discover products. We build intelligent retrieval, ranking, recommendation, and personalization models while leveraging latest AI techniques to create next-generation shopping experiences.

Requirements

• Extensive experience building production AI/ML systems at scale.
• Deep expertise in Search, Information Retrieval, Recommendation Systems, Personalization, or Ranking.
• Experience with learning to rank models, transformer/LLM or click-through rate prediction models
• Strong understanding of ML system architecture, MLOps, and distributed model deployment.
• Expertise in experimentation, causal inference, and performance evaluation.
• Excellent technical leadership and stakeholder management skills.
• Proven ability to influence architecture and mentor technical teams across organizations.
• Bachelors degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology or related field and 4 years' experience in an analytics related field.
• Masters degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology or related field and 2 years' experience in an analytics related field.
• 6 years' experience in an analytics or related field

Nice To Haves

• Data science, machine learning, optimization models, PhD in Machine Learning, Computer Science, Information Technology, Operations Research, Statistics, Applied Mathematics, Econometrics
• Successful completion of one or more assessments in Python, Spark, Scala, or R
• Using open source frameworks (for example, scikit learn, tensorflow, torch)
• We value candidates with a background in creating inclusive digital experiences, demonstrating knowledge in implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly.
• The ideal candidate would have knowledge of accessibility best practices and join us as we continue to create accessible products and services following Walmart’s accessibility standards and guidelines for supporting an inclusive culture.

Responsibilities

• Lead architecture and technical direction for Search and Personalization machine learning systems.
• Design scalable retrieval, ranking, recommendation, and personalization algorithms by adopting latest ML/AI techniques
• Lead cross-functional initiatives involving Product, Engineering, Platform, and Data Science teams.
• Establish experimentation frameworks and best practices for model development and evaluation.
• Mentor senior scientists and review technical designs across multiple initiatives.
• Influence long-term AI strategy and technology investments.
• Drive measurable improvements in customer engagement, search relevance, and business metrics.

Benefits

• Competitive pay
• Performance-based bonus awards
• Medical coverage
• Vision coverage
• Dental coverage
• 401(k)
• Stock purchase
• Company-paid life insurance
• PTO (including sick leave)
• Parental leave
• Family care leave
• Bereavement
• Jury duty
• Voting
• Short-term disability
• Long-term disability
• Company discounts
• Military Leave Pay
• Adoption and surrogacy expense reimbursement
• PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes.
• Live Better U is a Walmart-paid education benefit program for full-time and part-time associates in Walmart and Sam's Club facilities. Programs range from high school completion to bachelor's degrees, including English Language Learning and short-form certificates. Tuition, books, and fees are completely paid for by Walmart.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior